Stability, chemical nitroglycerine

By determining their chemical stability and ignition temperature, e.g. the stability of nitroglycerine- or PETN-, or nitrocellulose-nitro compound mixtures (Vol. IT, pp. 49, 181 and Vol. Ill, p. 566, respectively) [7],... 

Hazardous Decomp. Prods. Heated to decomp., emits toxic fumes of CO, CO2, NOx emits toxic fumes underfire conditions Storage Store in tightly closed container under inert atmosphere store refrigerated Uses Stabilizer for nitroglycerin chemical intermediate... 

C. Boyars, "Sensitivity and Desensitization of Nitroglycerin," ia Proceedings of 2nd Symposium on Chemical Problems Connected with the Stability of... 

The chemical stability of dinitrochlorohydrin is higher than that of nitroglycerine. It withstands the Abel heat test at 72°C for 30 min. On heating at a temperature of 75°C, the first signs of decomposition and the development of acid fumes do not appear before 10-12 days. A small quantity of chlorohydrin dinitrate heated in a test tube undergoes decomposition with the evolution of oxides of nitrogen at temperature above 170°C. Complete decomposition takes place (without explosion at 180°C. Larger quantities of the substance decompose with a weak explosion, if heated rapidly to a temperature of about 190°C. 

The chemical stability of dinitrodiglycol resembles that of nitroglycerine. Heated with water it undergoes hydrolysis more slowly than nitroglycerine on being maintained for 5 days at 60°C only 0.003% is decomposed. Hydrolysis in the presence... 

The relation between the chemical stability and nitrating temperature observed by Ropuszynski [29] in the instance of nitroglycerine (p. 43) and nitroglycol (p. 148) has been also confirmed with dinitrodiglycol. Diglycol nitrated at a higher temperature demonstrates improved stability owing to its lower content of residual acids. The relevant data are shown in Table 23. 

The substance is characterized by excellent chemical stability. Its explosive strength, as measured by the expansion produced in the lead block, is equivalent to about 75% of the explosive strength of nitroglycerine. 

Its chemical stability and sensitiveness to impact resembles those of nitroglycerine. It is an extremely strong explosive possessing a positive oxygen balance [8] ... 

Heated in a test tube, nitromannitol explodes at a temperature of 160-170°C. There is a divergence of opinion concerning its chemical stability. The stability of a very carefully purified, repeatedly crystallized sample is high, resembling that of nitroglycerine (Guastalla and Racciu [18]). However, a product crystallized only once or twice withstands heating at 75°C for only a few hours, after which brown fumes start to develop. 

In propellant chemistry, especially so in the case of nitrocellulose-containing powders, the stabilizers employed are compounds which, owing to their chemical structure, prevent the acid-catalyzed decomposition of nitrocellulose, nitroglycerine, and similar nitrate esters. 

Its chemical stability is better than that of nitroglycerine or nitrocellulose, and at least as good as that of diglycol dinitrate. 

Setting point Vapour pressure Absorption spectra Chemical properties and stability Sensitivity to impact Burning of nitroglycerine Explosion and Detonation of nitroglycerine Glycerol dinitratesCdiniiroglyccrinc ) and derivatives GlyceroNnitrolactatc dinitratc... 

Povidone is capable of chemically stabilizing certain active ingredients. This effect does not depend on the dosage form, as povidone is used to stabilize nitroglycerin and isosorbide dinitrate, particularly in transdermal systems [384-386],... 

Heal of combustion and heat of formation of nitroglycerine Chemical properties Stability... 

Stability of nitrate esters is a factor to decide if they can be long-term stored [44]. Because of their structure, they could be decomposed by hydrolysis and spontaneously burned to cause explosion. The higher the purity of esters is, the lower the risk of decomposition is. The stability depends on the chemical structure of nitrate esters. For example, the stability for most pure nitrate esters, such as methylene glycol dinitrate, nitroglycerine, glycol dinitrate, 1,3-propanediol dinitrate, pentae-rythritol tetranitrate, and cellulose nitrate, is acceptably high. 

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